Source:http://linkedlifedata.com/resource/umls/id/C0206660
MSH: A malignant neoplasm of the germinal tissue of the GONADS; MEDIASTINUM; or pineal region. Germinomas are uniform in appearance, consisting of large, round cells with vesicular nuclei and clear or finely granular eosinophilic-staining cytoplasm. (Stedman, 265th ed; from DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1642-3),NCI: A malignant germ cell tumor arising in the central nervous system. It is characterized by the presence of primitive, large malignant germ cells and lymphocytes.